Microprocessor Fab Question

highfalutintoddhighfalutintodd
Posted:
in General Discussion edited January 2014
So, got my latest Time Magazine in the mail today (the August 4, 2003 issue), and on the inside front cover is a big ad specifically talking about the G5 processor and how cool it is that it's 64-bit. At the bottom of the ad there is a big, close-up shot of a wafer with a ton of G5 cores on it.



Looking at this, I just had to wonder, "Why are wafers round while the cores are rectangular?" From the picture, it looks like there are partial cores all around the edge of the wafer. Why? Why aren't wafers rectangular so that real cores go all the way to the edges instead of all these partials? What am I missing?



Thanks for any info!

Comments

  • Reply 1 of 4
    wmfwmf Posts: 1,164member
    I've been working for a chip company for 2 years and I never thought of this question. Now you've got me curious.
  • Reply 2 of 4
    applenutapplenut Posts: 5,768member
    uhg... someone dig up "The Thread?"
  • Reply 3 of 4
    airslufairsluf Posts: 1,861member
    Kickaha and Amorph couldn't moderate themselves out of a paper bag. Abdicate responsibility and succumb to idiocy. Two years of letting a member make personal attacks against others, then stepping aside when someone won't put up with it. Not only that but go ahead and shut down my posting priviledges but not the one making the attacks. Not even the common decency to abide by their warning (afer three days of absorbing personal attacks with no mods in sight), just shut my posting down and then say it might happen later if a certian line is crossed. Bullshit flag is flying, I won't abide by lying and coddling of liars who go off-site, create accounts differing in a single letter from my handle with the express purpose to decieve and then claim here that I did it. Everyone be warned, kim kap sol is a lying, deceitful poster.



    Now I guess they should have banned me rather than just shut off posting priviledges, because kickaha and Amorph definitely aren't going to like being called to task when they thought they had it all ignored *cough* *cough* I mean under control. Just a couple o' tools.



    Don't worry, as soon as my work resetting my posts is done I'll disappear forever.

  • Reply 4 of 4
    highfalutintoddhighfalutintodd Posts: 60member
    Quote:

    Originally posted by AirSluf

    Here it is... Eskimo's work of art: How exactly are chips produced on those giant cookie sheets anyway?



    The specific answer to the opening question is in the last paragraph of the third post.



    AirSluf, thanks for pointing me towards that post. I've read that paragraph twice now and just barely understand what is being said, but at least there is a good, logical reason for the round shape. ;-) Thanksl!
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